Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
Used by Kendall Jenner, Snoop Dogg, BTS, Ariana Grande, Khloe Kardashian, Wiz Khalifa, Victoria Beckham, Die Antwoord and featured on SNL (S41E01) and in countless TV shows and music videos!
$5.99 · In-app purchases
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Rarevision VHS: Retro Cam: map the core Photo & Video workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Assumption to check: Limited editing features compared to full-fledged video editing apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Performance issues on older devices
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase confusion regarding features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of cloud backup for videos
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Used by Kendall Jenner, Snoop Dogg, BTS, Ariana Grande, Khloe Kardashian, Wiz Khalifa, Victoria Beckham, Die Antwoord and featured on SNL (S41E01) and in countless TV shows and music videos! Covered by WIRED, Forbes, The Wall Street Journal, Popular Mechanics, The Independent, Macworld, TMZ, TechCrunch, Mashable and many others! App of the Day for Friday, Dec 22, 2017 It's 1984, and you've got a VHS camcorder! It'll look that way when you record and send old, messed up-looking retro videos to friends. They'll swear you built a time machine: "OMG, how'd you shoot that?" With Rarevision VHS, you'll make videos that look and sound like real retro video tapes pulled out of storage after 30 years. You can change the on-screen date to trick your friends, create custom animated titles, glitch up the picture by shaking your device and use the fake zoom to emphasize those truly embarrassing moments! "That's freakin' amazing!" -Everyone Here's Why You Need It: • Four words: Best. Throwback. Videos. Ever. • Create VHS-style retro videos of your kids that look like the ones from your childhood • The only VHS cam app you should ever consider to capture your 80s and 90s-themed parties • Shoot your own "found footage" movie and become a big Hollywood director like those other guys • Make your kids' incredibly boring school plays actually rad • Impress the new girl by using our app to convince her you built a time machine • Pretend like you lived through the rad 1980s using our app! What Rarevision VHS Can Do: • Realism: the ORIGINAL and BEST VHS cam app for simulating the glitches of old videotape recordings • Import videos and give them the VHS look • Make your own signature look using the old-school picture adjustment menu • Create your own animated titles for the ultimate in on-screen awesomeness • Change the on-screen date so people think you're way younger (or older) than you really are • Glitch the picture during recording using your finger or by shaking your device • Fake zoom feature dramatically enhances the cheese factor • Don't think we forgot to make things sound retro terrible. We didn't. • Up to 60p recording for a more accurate VHS video look (depends on device capability) • Widescreen recording option (but would you REALLY want to use it?) Follow Rarevision: http://instagram.com/rarevision http://x.com/rarevision http://facebook.com/rarevisionvhs Rarevision is a US-based company. Copyright © 2015-2025 Rarevision LLC. All rights reserved.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.